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In flake lock file diffs, show the last-modified date of inputs if available

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This is a bit more informative than just the hash.

Also, format the diffs a bit nicer.
This commit is contained in:
Eelco Dolstra 2021-08-11 19:35:28 +02:00
parent 467a6fcdc2
commit 6b8069b823
2 changed files with 19 additions and 6 deletions
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4
src/libexpr/flake/flake.cc
View file

@ -567,8 +567,8 @@ LockedFlake lockFlake(
topRef.input.markChangedFile(
(topRef.subdir == "" ? "" : topRef.subdir + "/") + "flake.lock",
lockFlags.commitLockFile
? std::optional<std::string>(fmt("%s: %s\n\nFlake input changes:\n\n%s",
relPath, lockFileExists ? "Update" : "Add", diff))
? std::optional<std::string>(fmt("%s: %s\n\nFlake lock file changes:\n\n%s",
relPath, lockFileExists ? "Update" : "Add", filterANSIEscapes(diff, true)))
: std::nullopt);
/* Rewriting the lockfile changed the top-level

21
src/libexpr/flake/lockfile.cc
View file

@ -2,6 +2,8 @@
#include "store-api.hh"
#include "url-parts.hh"
#include <iomanip>
#include <nlohmann/json.hpp>
namespace nix::flake {
@ -268,10 +270,20 @@ std::map<InputPath, Node::Edge> LockFile::getAllInputs() const
return res;
}
static std::string describe(const FlakeRef & flakeRef)
{
auto s = fmt("'%s'", flakeRef.to_string());
if (auto lastModified = flakeRef.input.getLastModified())
s += fmt(" (%s)", std::put_time(std::gmtime(&*lastModified), "%Y-%m-%d"));
return s;
}
std::ostream & operator <<(std::ostream & stream, const Node::Edge & edge)
{
if (auto node = std::get_if<0>(&edge))
stream << "'" << (*node)->lockedRef << "'";
stream << describe((*node)->lockedRef);
else if (auto follows = std::get_if<1>(&edge))
stream << fmt("follows '%s'", printInputPath(*follows));
return stream;
@ -299,14 +311,15 @@ std::string LockFile::diff(const LockFile & oldLocks, const LockFile & newLocks)
while (i != oldFlat.end() || j != newFlat.end()) {
if (j != newFlat.end() && (i == oldFlat.end() || i->first > j->first)) {
res += fmt("* Added '%s': %s\n", printInputPath(j->first), j->second);
res += fmt("• " ANSI_GREEN "Added input '%s':" ANSI_NORMAL "\n %s\n",
printInputPath(j->first), j->second);
++j;
} else if (i != oldFlat.end() && (j == newFlat.end() || i->first < j->first)) {
res += fmt("* Removed '%s'\n", printInputPath(i->first));
res += fmt("• " ANSI_RED "Removed input '%s'" ANSI_NORMAL "\n", printInputPath(i->first));
++i;
} else {
if (!equals(i->second, j->second)) {
res += fmt("* Updated '%s': %s -> %s\n",
res += fmt("• " ANSI_BOLD "Updated input '%s':" ANSI_NORMAL "\n %s\n → %s\n",
printInputPath(i->first),
i->second,
j->second);